Amazon Elastic File System (Amazon EFS) is now available in all commercial AWS regions except China regions. With this launch, Amazon EFS is now also available in the regions below:

  • Asia Pacific (Hong Kong)
  • Europe (Stockholm)
  • Middle East (Bahrain)
  • South America (São Paulo)  

from Recent Announcements: https://aws.amazon.com/about-aws/whats-new/2019/11/amazon-elastic-files-system-now-available-in-bahrain-stockholm-sau-paulo-hong-kong/